Length:Length is measured from the outside edge of end cap to end cap, not including any handles, threads or slip fittings. 11-7/8"
Bottom:Outer Diameter (OD) of threads measures approx. 1-7/8.1-1/2" Fine Thread
Media:30 SFAntimicrobial Blue Antimicrobial Media inhibits the growth of bacteria on the pleated fabric that can foul and degrade a cartridge.
Premium replacement for:Unicel:Unicel part numbers either start with a "C" or contain a "CH" like "C-8475RA" or "6CH-49".4CH-30RA
Pleatco:Pleatco part numbers start with a "P" like "PWW100ST".PTL25P4-4-M
Filbur:Filbur part numbers start with an "FC-" like "FC-0360".FC-0141M